Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 35873: multiply, if possible simpliy
%28%28%28a-b%29%5E2-9%29%2F%28%28a-b%29%5E2-9%29%29%2A%28%28a-b-3%29%2F%28a%2Bb%2B3%29%29

Click here to see answer by ilana(307) About Me 

Question 36437: (c-1)^2= 43.8 is given to me. How do i solve for c?
Click here to see answer by stanbon(75887) About Me 

Question 36597: Write without parentheses
(u/-3w^2)

Click here to see answer by checkley71(8403) About Me 

Question 36702: -4-11
______
3-(-2)

Click here to see answer by elima(1433) About Me 

Question 36754: I need to simplify this and cannot remember how. I must show work! Thank you for your wonderful help!
3^-2

Click here to see answer by hydromojo(20) About Me 

Question 36843: Gosh I need help here! If 5+3 x4 means 5+(3x4) and not (5+3)x4 because multiplication always takes precedence over addidtion(which I understand). What are the standard precedence rules for the usual operations in arthmetic.
P.S. Not sure if this a word problem. Thanks for any help I can get.

Click here to see answer by checkley71(8403) About Me 

Question 36981: 2x+3=9.x
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Question 37069: Hii i need help on this problem. And the question says write each expression as a simple fraction... -5 to the -3 power
Click here to see answer by stanbon(75887) About Me 

Question 37234: Hey, I'm really having trouble with this problem...I can't figure out which step to do first!
(((5-4w+12=-2(3w-8)+w)))
I know how to do the Distributive Property, and I simplified the expression down to [5-4w+12=-5w-16], but after that I am at loss for what to do next. I really need an answer by tomorrow morning, if possible, and I would appreciate it SOOOOOO much! Thank you!
Rachel

Click here to see answer by checkley71(8403) About Me 
Question 37234: Hey, I'm really having trouble with this problem...I can't figure out which step to do first!
(((5-4w+12=-2(3w-8)+w)))
I know how to do the Distributive Property, and I simplified the expression down to [5-4w+12=-5w-16], but after that I am at loss for what to do next. I really need an answer by tomorrow morning, if possible, and I would appreciate it SOOOOOO much! Thank you!
Rachel

Click here to see answer by askmemath(368) About Me 

Question 25962: Expand and simplify 3w+2(w+x)
Click here to see answer by weepingwillowcats(10) About Me 

Question 35707: x^2+xy-y^2
__________
x+y
when x=6 and y=-2

Click here to see answer by fractalier(6550) About Me 

Question 37733: The problem is (5 1/2)/ (4 3/4)
This is for an online algebra class. I tried to follow the example which shows how to change the mixed fraction into a improper fraction adn then you multiply to get you answer. When I did that i came up with 5/7*7/3 but you flip the second fraction adn you get 3/7*5/7 and that gave me 15/49. But these are multiple choice questions and that answer was not one of the ones that i can choose from. I did the problem many more times and still have not come up with an answer that is one of my choices. If it helps my choices are: 22/19 19/22 110/8 12/5 209/8 13/4 Can you help me with this problem? The lesson is mixed expression and complex fractions

Click here to see answer by Earlsdon(6294) About Me 

Question 37945: Combine like terms: 6X2 + 3X -2 + 2X2 – X + 7
A) 10X + 5 B) 8X2 + 2X + 5 C) 4X2 + 4X – 9 D) 10X + 9

Click here to see answer by checkley71(8403) About Me 

Question 37944: Multiply (X2Y2)(X2Y)
A) 4X2Y B) XY2X2Y C) 2X2Y2Y D) X4Y3

Click here to see answer by checkley71(8403) About Me 
Question 37944: Multiply (X2Y2)(X2Y)
A) 4X2Y B) XY2X2Y C) 2X2Y2Y D) X4Y3

Click here to see answer by fractalier(6550) About Me 

Question 37940: Evaluate | 3 | + | -4 |
A) 1 B) -1 C) 7 D) -7

Click here to see answer by fractalier(6550) About Me 

Question 38145: Given f (x) = 4x + 4, find f (x + 2)
A) 3x + 2 B) 4x + 6 C) x + 6 D) 4x + 12

Click here to see answer by Nate(3500) About Me 

Question 38144: Given f (x) = 5x^2 – 12x + 3, find f (-2)
A) -41 B) -43 C) 47 D) 49

Click here to see answer by Nate(3500) About Me 

Question 38148:
3x + 7y = 1
 x + 2y = 1

A) solution = (4,9)   B) solution = (5,-2) 
C) solution = (1,1/2) D) solution = (1/3 , 1/7)

Click here to see answer by AnlytcPhil(1807) About Me 

Question 38146: Rewrite the equation -2X + 3Y = -15 as a function of X.
A) f(x) = 2/3x – 5 B) f(x) = 2x – 15 C) f(x) = -3y – 15 D) f(x) = 3/2y + 7.5

Click here to see answer by checkley71(8403) About Me 

Question 38251: find (f . g)(x) and (g . f)(x) for each function
f(x)=-6x+9, g(x)=5x+7
f(x)=4x^2+2x+8, g(x)= x+5
f(x)=2/x^4, g(x)=2square root x+2
f(x)=8x+12, g(x)=3x-1
f(x)=5x+3, g(x)=-x^2+4x+3
f(x)=1/x, g(x)=8x^2-6

Click here to see answer by lyra(94) About Me 

Question 38250: 8/3p+5/4p+9/2p
1/x+3-1/x/1/x
2x^2+2=5x
x^2-4x-1=0
x^2-3x-4is greater than or equal to 0
the absolute value of x+3 = absolute value of 2x
y=3/2x-4
y=-2x+1

Click here to see answer by lyra(94) About Me 

Question 38356: Evaluate. 4 · 2^2 - 2 · 8
Click here to see answer by fractalier(6550) About Me 

Question 38171: Find the sum of the fcllowing geometric series.
8 + 12 +..... + 60.75

Click here to see answer by venugopalramana(3286) About Me 

Question 36798: I need to evaluate the problem, I can't seem to come up with the answer, I guess maybe i didn't quite understand how you solve these. When i do it the way the textbook shows to do similar problems, i get the wrong answer, please help, thanks
Click here to see answer by Evy(14) About Me 

Question 38476: When simplifying expressions, how are like terms determined?
Click here to see answer by fractalier(6550) About Me 

Question 38474: Why must units of an expression be the same in order to be combined?
Click here to see answer by lyra(94) About Me 

Question 38244: 3-(4-5)+(-5)x6+14
_________________
4(-1-2)

Click here to see answer by lyra(94) About Me 

Question 38858: what is the slope of the graph of this linear equation in two variables
3y + 18x = 21

Click here to see answer by fractalier(6550) About Me 

Question 38980: Find the zeroes
20.(x + 5)(2x - 1) =0
21.x(3x+4)(7x+5) = 0

Click here to see answer by Nate(3500) About Me 

Question 39041: 5(x+5)=25+5x


a) -5 b) 0 c) all real numbers d) no solution

Click here to see answer by KneesAndToes(13) About Me 

Question 39048: Simplify: 2x + 7(x+7) a) -5x + 49 b) 9x + 7 c) 9x + 49 d) 9x-49
Click here to see answer by checkley71(8403) About Me 

Question 39051: solve -3(x-1) = 12 +6x a)-1 b)0 c) all real numbers d) no solution
Click here to see answer by stanbon(75887) About Me 
Question 39051: solve -3(x-1) = 12 +6x a)-1 b)0 c) all real numbers d) no solution
Click here to see answer by checkley71(8403) About Me 

Question 39056: solve -3(x+2)= 3(2-x) a) 2 b) 0 c) all real numbers d) no solution
Click here to see answer by checkley71(8403) About Me 

Question 39060: simplify: 11(x+1) - 6(x+1) a) 5x+17 b) 11x-17 c)11x-5 d) 5x+5
Click here to see answer by checkley71(8403) About Me 

Question 39332: simplify 9(x-1) - 5(x-1) a 4x-4 b 9x-14 c 9x-4 d 4x-14
Click here to see answer by checkley71(8403) About Me 

Question 39317: which is equivalent to 2 to neative 4 power a) -16 b) 16 c) -8 ) 1/16
Click here to see answer by checkley71(8403) About Me 

Question 39316: simplify: (-2) to third power a) -6 b) 6 c) 8 d) -8
Click here to see answer by checkley71(8403) About Me 

Question 39313: Simpliy: w to fourth power over w to second power a) w to 1/2 power b) w to eighth power c) w to sixth power d)w to second power
Click here to see answer by checkley71(8403) About Me 

Question 39312: simplify: -(-2)to sixth power
Click here to see answer by checkley71(8403) About Me 

Question 39382: I am a beginner.
I am stuck on correct answer for finding one of the factors of:
X^2 + X - 6 =
I am not using a specific book. I am just practicing...........

Click here to see answer by venugopalramana(3286) About Me 

Question 39538: Simply each of the following expressions where possible (pg. 150)

I can't really type it out on my computer but the numbers are on the left side of the letter.
6x2y3 + 9x2y3
________________________________
3x2y2

Click here to see answer by fractalier(6550) About Me 

Question 39315: simplify 4x-5(x-7) a -x + 35 b) -x-35 c) -x-7 d) 9x+35
Click here to see answer by fractalier(6550) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840